Mads:
I myself do use comments when I select a story to read as a supplement to the synopsis and the other information on the story.
That brings up an interesting issue which I wonder about every time I consider a story.
Should I read the comments?
For a start they can suggest whether the story might be a good one; the gross number is often an indicator of this (with the obvious exception of my own stories which are universally brilliant despite their obscurity).
However, comments contain spoilers. If I read them I'll know if the foolish protagonist gets spanked, so it's always a gamble.